Thor-Delta – United States Air Force Family: Thor meters Length: 18.42 meters Diameter: 2.44 meters Launch Mass: 54 Low Earth Orbit Capacity: The Thor-Delta was manufactured by United States Air Force with the first launch on 1960-05-13. Thor-Delta has 3 successful launches and 0 failed launches with a total of 3 launches. The Delta DM-19, or Thor-Delta was an early launch system used for 12 launches in the early ’60s in the US. The first stage was a Thor missile with the second stage being the Delta, hence the name Thor-Delta. Of 12 flights, it failed only once and put 11 satellites into orbit between 1960 and 62. United States Air Force is a Government USA entity that was founded in and is administered by . United States Air Force has 19 successful launches and 12 failed launches with a total of 31 launches.